General Description

The CS4207 is a highly integrated multi-channel low power HD Audio Codec featuring 192 kHz DACs, 96 kHz ADCs, 192 kHz S/PDIFTransmitters and Receiver, Microphone pre-amp and bias voltage, and a ground centered Headphone driver. Based on multi-bit, delta-sigma modulation, it allows infinite sample rate adjustment between 32 kHz and 192 kHz.

DIGITAL to ANALOG FEATURES

DAC1 (Headphone)

– 101 dB Dynamic Range (A-wtd)

– -89 dB THD+N

Headphone Amplifier - GND Centered

– Integrated Negative-voltage Regulator

– No DC-blocking Capacitor Required

– 50 mW Power/Channel into 16?

DAC2 & DAC3 (Line Outs)

– 110 dB Dynamic Range (A-wtd)

– -94 dB THD+N

– Differential Balanced or Single-ended

Each DAC Supports 32 kHz to 192 kHz Sample Rates Independently.

Digital Volume Control

– +6.0 dB to -57.5 dB in 0.5 dB Steps

– Zero Cross and/or Soft Ramp Transitions

Independent Support of D0 and D3 Power States for Each DAC

Fast D3 to D0 Transition

– Audio Playback in Less Than 50 ms

ANALOG to DIGITAL FEATURES

ADC1 & ADC2

– 105 dB Dynamic Range (A-wtd)

– -88 dB THD+N

– Differential Balanced or Single-ended Inputs

– Analog Programmable Gain Amplifier (PGA) ±12 dB, 1.0 dB Steps, with Zero Cross Transitions and Mute

MIC Inputs

– Pre-amplifier with Selectable 0 dB, +10 dB, +20 dB, and +30 dB Gain Settings

– Programmable, Low-noise MIC Bias Level

Each ADC Supports 8 kHz to 96 kHz Sample Rates Independently

Additional Digital Attenuation Control

– -13.0 dB to -51.0 dB in 1.0 dB steps

– Zero Cross and/or Soft Ramp Transitions

Digital Interface for Two Dual Digital Mic Inputs

Independent Support of D0 and D3 Power States for Each ADC

System Features

Very Low D3 Power Dissipation of <7 mW

– Jack Detect Active in D3

– HDA BITCLK Not Required for D3 State

Jack Detect Does Not Require HDA Bus BITCLK

All Configuration Settings are Preserved in D3 State

Pop/Click Suppression in State Transitions

Detects Wake Event and Generates Power State Change Request when HDA Bus Controller is in D3

Variable Power Supplies

– 1.5 V to 1.8 V Digital Core Voltage

– 3.3 V to 5.0 V Analog Core Voltage

– 3.3 V to 5.0 V Headphone Drivers

– 1.5 V to 3.3 V HD Bus Interface Logic

– 3.3 V Interface Logic levels for GPIO, S/PDIF, and Digital Mic

Individual Power-down Managed

– ADCs, DACs, PGAs, Headphone Driver, S/PDIF Receiver, and Transmitters

CDB4207屬于開發(fā)板，套件，編程器 > 評(píng)估和演示板及套件。凌云邏輯制造生產(chǎn)的CDB4207評(píng)估和演示板及套件該系列產(chǎn)品提供了一種方便的方法，在經(jīng)過驗(yàn)證的實(shí)施環(huán)境中評(píng)估某些重點(diǎn)器件的性能或特性。評(píng)估方法通常有完善的文檔說明，并且視乎具體情況由評(píng)估軟件提供支持。產(chǎn)品通常由印刷電路板組成，板上已裝有重點(diǎn)器件以及必要或有用的支持元器件，另外也可能包括其他組件，例如電纜或電源。對(duì)于數(shù)量特別多或類別獨(dú)特的器件類別(如 ADC、DAC 和開關(guān)模式電源)，評(píng)估平臺(tái)可組合為一個(gè)單獨(dú)的產(chǎn)品系列。